FKIE_CVE-2021-27803

Vulnerability from fkie_nvd - Published: 2021-02-26 23:15 - Updated: 2026-06-17 03:45
Severity
7.5 (High) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 (High) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2021/02/27/1Mailing List, Mitigation, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2021/03/msg00003.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
cve@mitre.orghttps://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patchPatch, Vendor Advisory
cve@mitre.orghttps://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txtMitigation, Vendor Advisory
cve@mitre.orghttps://www.debian.org/security/2021/dsa-4898Third Party Advisory
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2021/02/25/3Mailing List, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/02/27/1Mailing List, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/03/msg00003.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
af854a3a-2127-422b-91ae-364da2661108https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patchPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txtMitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4898Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2021/02/25/3Mailing List, Mitigation, Third Party Advisory
Impacted products
Vendor Product Version
w1.fi wpa_supplicant *
fedoraproject fedora 32
fedoraproject fedora 33
fedoraproject fedora 34
debian debian_linux 9.0
debian debian_linux 10.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "28E6B937-278A-4604-B342-2C458AE97C3C",
              "versionEndExcluding": "2.10",
              "versionStartIncluding": "1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 una vulnerabilidad en la manera en que el archivo p2p/p2p_pd.c en wpa_supplicant versiones anteriores a  2.10, procesa unas peticiones de detecci\u00f3n de aprovisionamiento P2P (Wi-Fi Direct).\u0026#xa0;Podr\u00eda resultar en una denegaci\u00f3n de servicio u otro impacto (potencialmente una ejecuci\u00f3n de c\u00f3digo arbitraria), para un atacante dentro del alcance del radio"
    }
  ],
  "id": "CVE-2021-27803",
  "lastModified": "2026-06-17T03:45:28.727",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 5.5,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-27803",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-18T14:57:24.188771Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-02-26T23:15:11.340",
  "references": [
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      "tags": [
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    {
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    {
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    },
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
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  ]
}



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